Surfbussen offers SUP rentals and accompanied paddling from Karlbergssjön. SUP means stand-up paddleboard. The lake’s waters are described as calm, and paddlers can reach Stockholm City Hall in 30 minutes. Visit Stockholm describes the route as an easy paddle. Visitors can rent a board or choose accompanied paddling, both listed by Surfbussen.

The company also runs a kite school. Its students are certified with the International Kiteboarding Organization (IKO). Electric hydrofoil is another offering, alongside SUP and kiteboarding. The activities range from board paddling to kiteboarding and hydrofoil.

The listed address is Kungsholms strand 181, 112 48 Stockholm. The 30-minute figure is for paddling to City Hall, not a stated total visit duration. For SUP, Karlbergssjön is the starting point named for the paddle route. The listed activities are SUP rental, accompanied paddling, the kite school and electric hydrofoil.